Harry Styles continued his quest for world domination in Los Angeles on May 19, and he did so in truly epic fashion: He played through his debut solo album at one of the city's most beloved venues, for one thing, but he brought out a living legend and sang one of her greatest hits with her.

NBD. All in a day's work for the biggest pop star on the planet at the moment.

Stevie Nicks got up onstage with Styles at the Troubadour and backed him up on a lovely performance of “Two Ghosts,” but what truly leveled the crowd was a duet of Fleetwood Mac's "Landslide,” which had Styles singing along with the woman who wrote one of the best ballads of the twentieth century.

Again, NBD. Just a casual sing-along with STEVIE. NICKS.

At one point, Styles clutched his chest and shook his head in disbelief, and, honestly, same. This is likely a life highlight for the lucky couple hundred people who caught this in person, no exaggeration. It's gotta be a career high for Styles, too, as he felt compelled to sit back and savor for a minute in the middle of the set.

Hey, L.A.: You are very, very, very, very, very lucky, and hopefully this is a sign that Styles's tour will feature tons of truly incredible surprises just like this.